Likhokahanong tsa sejoale-joale tsa puisano, Distributed Antenna Systems (DAS) e fetohile tharollo ea bohlokoa bakeng sa basebelisi ho sebetsana le ts'ireletso ea kahare, ntlafatso ea bokhoni, le phetisetso ea matšoao a mefuta e mengata. Ts'ebetso ea DAS ha e itšetlehe feela ka li-antenna ka botsona empa e boetse e susumetsoa haholo ke likarolo tse fapaneng tse sa sebetseng ka har'a sistimi, haholo li-splitters tsa motlakase le li-coupler tsa tataiso. Ho khetha likarolo tse nepahetseng ho khetholla ka ho toba boleng ba tšireletso ea matšoao le katleho ea ts'ebetso ea marang-rang ka kakaretso.
I. Karolo ea Likhaolo tsa Matla ho DAS
Li-splitter tsa motlakase li sebelisoa haholo-holo ho aba mats'oao a liteishene tsa setsi ka mokhoa o lekanang likoung tse ngata tsa li-antenna tsa ka tlung, tse nolofalletsang tšireletso libakeng tse ngata.
Lintlha tsa bohlokoa ha u khetha li-splitters tsa motlakase:
Tahlehelo ea Kenyelletso
Tahlehelo e tlase ea ho kenya e fella ka katleho e phahameng ea phetisetso ea matšoao. Mererong e meholo ea ts'ireletso ea ka tlung, basebelisi hangata ba khetha ho arola matla a tahlehelo e tlase ho fokotsa tšenyo ea motlakase.
Ho Ikhetha Boema-kepe
Ho itšehla thajana ho fokotsa ho kopana lipakeng tsa likou, ho netefatsa boikemelo ba matšoao har'a li-antenna tse fapaneng.
Matla a ho Ts'oara Matla
Maemong a ts'ebeliso ea matla a phahameng (mohlala, DAS libakeng tse kholo), ho bohlokoa ho khetha li-splitter tsa matla tse khonang ho sebetsana le matla a phahameng a ho kenya letsoho ho netefatsa ts'ebetso e tsitsitseng ea nako e telele.
II. Tšebeliso ea Banyalani ho DAS
Banyalani ba sebelisoa ho ntša karolo ea lets'oao ho tsoa kutung e kholo ho fepa li-antenna libakeng tse ikhethileng tsa kahare, joalo ka liphasejeng kapa kabo ea fatše.
Lintlha tsa bohlokoa ha u khetha banyalani:
Coupling Boleng
Maemo a tloaelehileng a ho kopanya a kenyelletsa 6 dB, 10 dB, le 15 dB. Boleng ba ho kopanya bo ama matla a abetsoeng li-antenna. Basebelisi ba lokela ho khetha boleng bo loketseng ba ho kopanya ho ipapisitsoe le litlhoko tsa tšireletso le palo ea li-antenna.
Directivity le ho itšehla thajana
Li-couplers tse phahameng li fokotsa ho bonahatsa pontšo, ho matlafatsa botsitso ba sehokelo se seholo sa kutu.
Litšobotsi tse tlase tsa PIM
Litsamaisong tsa 5G le li-multi-band DAS, li-couplers tse tlase tsa Passive Intermodulation (PIM) li bohlokoa haholo ho qoba ho kena-kenana le ho kena-kenana le ho netefatsa boleng ba matšoao.
III. Maano a Sebetsang a Khetho bakeng sa Basebelisi
Likabelong tsa boenjineri, ka tloaelo basebelisi ba nahana ka lintlha tse latelang ho khetha ka botlalo li-splitter le li-couplers:
Boemo ba Ts'ebetso: Meaho e menyenyane ea liofisi e kanna ea sebelisa liphaello tsa motlakase tse 2-way kapa 3, athe mabala a maholo a lipapali kapa boema-fofane ba hloka motsoako oa mekhahlelo e mengata ea ho arola matla le li-couplers tse fapaneng.
Multi-Band Support: DAS ea sejoale-joale e tlameha ho ts'ehetsa mekhahlelo ea maqhubu ho tloha ho 698-2700 MHz esita le ho atolosa ho 3800 MHz. Basebelisi ba hloka ho khetha likarolo tse sa sebetseng tse tsamaellanang le lihlopha tse felletseng tsa maqhubu.
Tekanyo ea Sistimi: Ka ho kopanya ka mokhoa o utloahalang li-splitters tsa motlakase le li-couplers, li-operator li ka netefatsa matla a mats'oao a leka-lekaneng libakeng tsohle, ho qoba libaka tse foufetseng kapa ho koahela ho feta tekano.
Chengdu Concept Microwave Technology CO., Ltd ke moetsi ea hloahloa oaLikarolo tsa microwave tse sa sebetseng bakeng sa tsamaiso ea DAS, ho kenyeletsoa filthara ea RF lowpass, sefahla sa highpass, filthara ea bandpass, filthara ea notch/band stop filter, duplexer, Power divider le directional coupler. Kaofela ha tsona li ka etsoa ho latela litlhoko tsa hau.
Rea u amohela webosaeteng ea rona:www.concept-mw.comkapa re fihle ho:sales@concept-mw.com
Nako ea poso: Sep-16-2025